From: Adam Borowski <kilobyte@angband.pl>
To: linux-btrfs@vger.kernel.org
Subject: corrupt leaf on just-created filesystem
Date: Fri, 16 Dec 2016 10:18:30 +0100 [thread overview]
Message-ID: <20161216091830.GA13211@angband.pl> (raw)
Got a 100% reproducible splat on 4.9.
So I plopped in a fresh 4TB disk:
dd if=/dev/zero of=meow bs=1 seek=4000785104895 count=1
mkfs -t btrfs meow
mount -onoatime meow /mnt/vol1
cd /mnt/vol1
btrfs subv create foo
[ 104.867344] BTRFS: device label diediedie devid 1 transid 5 /dev/sdc1
[ 127.438513] BTRFS info (device sdc1): setting 8 feature flag
[ 127.444540] BTRFS info (device sdc1): use lzo compression
[ 127.450290] BTRFS info (device sdc1): disk space caching is enabled
[ 127.456910] BTRFS info (device sdc1): has skinny extents
[ 127.462551] BTRFS info (device sdc1): flagging fs with big metadata feature
[ 127.472953] BTRFS info (device sdc1): creating UUID tree
[ 138.792678] BTRFS critical (device sdc1): corrupt leaf, non-root leaf's nritems is 0: block=29573120,
root=1, slot=0
[ 138.804002] BTRFS info (device sdc1): leaf 29573120 total ptrs 0 free space 16283
[ 138.812220] assertion failed: 0, file: fs/btrfs/disk-io.c, line: 4074
[ 138.819384] ------------[ cut here ]------------
[ 138.824673] kernel BUG at fs/btrfs/ctree.h:3418!
[ 138.829965] invalid opcode: 0000 [#1] SMP
[ 138.829984] Modules linked in: cp210x pl2303 usbserial nouveau video mxm_wmi ttm
[ 138.829989] CPU: 3 PID: 2158 Comm: btrfs Not tainted 4.9.0-debug+ #1
[ 138.829991] Hardware name: System manufacturer System Product Name/M4A77T, BIOS 2401 05/18/2011
[ 138.829995] task: ffff88022d8def80 task.stack: ffffc900047a0000
[ 138.830008] RIP: 0010:[<ffffffff814dfaa0>] [<ffffffff814dfaa0>] assfail.constprop.21+0x1c/0x2a
[ 138.830011] RSP: 0018:ffffc900047a38d8 EFLAGS: 00010296
[ 138.830014] RAX: 0000000000000039 RBX: ffff880227b05730 RCX: ffffffff82090d18
[ 138.830017] RDX: 0000000000000039 RSI: 0000000000000246 RDI: ffffffff825f534c
[ 138.830020] RBP: ffffc900047a38d8 R08: ffff88021d959800 R09: 00000000ffffffff
[ 138.830023] R10: ffff88022ef54000 R11: 0000000000000000 R12: 000000022d9f1000
[ 138.830025] R13: ffff88021d960000 R14: ffff88022ee0faa0 R15: 0000000000000000
[ 138.830029] FS: 00007fa8de68e8c0(0000) GS:ffff880237cc0000(0000) knlGS:0000000000000000
[ 138.830032] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 138.830034] CR2: 00000000013a4098 CR3: 000000021f137000 CR4: 00000000000006e0
[ 138.830035] Stack:
[ 138.830043] ffffc900047a3900 ffffffff8143b049 ffff880227b05730 ffff88021d941000
[ 138.830048] ffff8802297a8a68 ffffc900047a3998 ffffffff8140ee9c 0000000000000000
[ 138.830053] 0000000000000000 0000000000000000 ffffc900047a3a58 ffff8802297a8a68
[ 138.830054] Call Trace:
[ 138.830062] [<ffffffff8143b049>] btrfs_mark_buffer_dirty+0x109/0x150
[ 138.830069] [<ffffffff8140ee9c>] __btrfs_cow_block+0x37c/0x700
[ 138.830075] [<ffffffff8140f3f7>] btrfs_cow_block+0x137/0x1a0
[ 138.830081] [<ffffffff8141462b>] btrfs_search_slot+0x25b/0xfb0
[ 138.830087] [<ffffffff8140d9c3>] ? btrfs_set_path_blocking+0x73/0x170
[ 138.830092] [<ffffffff81417486>] btrfs_insert_empty_items+0x66/0xc0
[ 138.830098] [<ffffffff814caa9a>] btrfs_uuid_tree_add+0x17a/0x340
[ 138.830103] [<ffffffff8147d2fb>] create_subvol+0x5cb/0x910
[ 138.830109] [<ffffffff8147d9d2>] btrfs_mksubvol+0x392/0x600
[ 138.830115] [<ffffffff815e3ce3>] ? get_color+0x33/0x160
[ 138.830120] [<ffffffff8147dd0c>] btrfs_ioctl_snap_create_transid+0xcc/0x1b0
[ 138.830125] [<ffffffff8147de64>] btrfs_ioctl_snap_create+0x74/0xa0
[ 138.830130] [<ffffffff814825fe>] btrfs_ioctl+0xd8e/0x2660
[ 138.830136] [<ffffffff81111696>] ? __wake_up+0x46/0x60
[ 138.830141] [<ffffffff816881f1>] ? tty_ldisc_deref+0x11/0x20
[ 138.830148] [<ffffffff8167e635>] ? tty_write+0x1e5/0x310
[ 138.830152] [<ffffffff816833d0>] ? n_tty_receive_signal_char+0x70/0x70
[ 138.830157] [<ffffffff81248dd3>] ? __vfs_write+0x23/0x130
[ 138.830162] [<ffffffff8125eeea>] do_vfs_ioctl+0x9a/0x5e0
[ 138.830167] [<ffffffff8124a232>] ? vfs_write+0x172/0x1a0
[ 138.830172] [<ffffffff8125f4b6>] SyS_ioctl+0x86/0xa0
[ 138.830178] [<ffffffff81a3ce24>] entry_SYSCALL_64_fastpath+0x17/0x98
[ 138.830229] Code: 88 00 00 00 89 d8 5b 41 5c 41 5d 41 5e 5d c3 55 89 f1 48 c7 c2 5f e1 da 81 48 89 fe 48 c7 c7 88 cd d9 81 48 89 e5 e8 8a 24 cd ff <0f> 0b 48 c7 c7 40 27 14 82 e8 12 1e 0c 00 55 48 89 e5 41 54 53
[ 138.830235] RIP [<ffffffff814dfaa0>] assfail.constprop.21+0x1c/0x2a
[ 138.830236] RSP <ffffc900047a38d8>
[ 138.830253] ---[ end trace 957cf23018b1bbce ]---
[ 169.116682] BTRFS critical (device sdc1): corrupt leaf, non-root leaf's nritems is 0: block=29605888, root=1, slot=0
[ 169.128243] BTRFS info (device sdc1): leaf 29605888 total ptrs 0 free space 16283
[ 169.136644] assertion failed: 0, file: fs/btrfs/disk-io.c, line: 4074
[ 169.144009] ------------[ cut here ]------------
[ 169.149524] kernel BUG at fs/btrfs/ctree.h:3418!
[ 169.155016] invalid opcode: 0000 [#2] SMP
[ 169.159887] Modules linked in: cp210x pl2303 usbserial nouveau video mxm_wmi ttm
[ 169.168434] CPU: 4 PID: 2149 Comm: btrfs-transacti Tainted: G D 4.9.0-debug+ #1
[ 169.177786] Hardware name: System manufacturer System Product Name/M4A77T, BIOS 2401 05/18/2011
[ 169.187681] task: ffff88021a7f0e00 task.stack: ffffc90004768000
[ 169.194519] RIP: 0010:[<ffffffff814dfaa0>] [<ffffffff814dfaa0>] assfail.constprop.21+0x1c/0x2a
[ 169.204196] RSP: 0018:ffffc9000476b8c8 EFLAGS: 00010292
[ 169.210420] RAX: 0000000000000039 RBX: ffff88022cbd3bd0 RCX: ffffffff82090d18
[ 169.218481] RDX: 0000000000000039 RSI: 0000000000000246 RDI: ffffffff825f534c
[ 169.226547] RBP: ffffc9000476b8c8 R08: ffff88021d959800 R09: 00000000ffffffff
[ 169.234603] R10: ffff88022ef54000 R11: 0000000000000000 R12: 0000000220c62000
[ 169.242646] R13: ffff88021d960000 R14: ffff88022ee0f820 R15: 0000000000000000
[ 169.250701] FS: 0000000000000000(0000) GS:ffff880237d00000(0000) knlGS:0000000000000000
[ 169.259732] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 169.266383] CR2: 00007f236e493b00 CR3: 0000000002007000 CR4: 00000000000006e0
[ 169.274447] Stack:
[ 169.277330] ffffc9000476b8f0 ffffffff8143b049 ffff88022cbd3bd0 ffff880220f77800
[ 169.285754] ffff8802297a86f0 ffffc9000476b988 ffffffff8140ee9c 0000000000000000
[ 169.294156] 0000000000000000 ffff88022af3b000 ffffc9000476ba48 ffff8802297a86f0
[ 169.302582] Call Trace:
[ 169.305906] [<ffffffff8143b049>] btrfs_mark_buffer_dirty+0x109/0x150
[ 169.313290] [<ffffffff8140ee9c>] __btrfs_cow_block+0x37c/0x700
[ 169.320147] [<ffffffff8140f3f7>] btrfs_cow_block+0x137/0x1a0
[ 169.326846] [<ffffffff8141462b>] btrfs_search_slot+0x25b/0xfb0
[ 169.333674] [<ffffffff81223be0>] ? kmem_cache_alloc+0xa0/0x190
[ 169.340495] [<ffffffff814336fb>] btrfs_del_csums+0x1cb/0x3b0
[ 169.347100] [<ffffffff81417937>] ? btrfs_del_items+0x377/0x5e0
[ 169.353899] [<ffffffff8141f9ae>] __btrfs_free_extent+0x6be/0xdc0
[ 169.360890] [<ffffffff81424b12>] __btrfs_run_delayed_refs+0x4a2/0x1180
[ 169.368393] [<ffffffff8145d4b6>] ? btrfs_get_token_32+0xf6/0x110
[ 169.375381] [<ffffffff814295e9>] btrfs_run_delayed_refs+0xb9/0x300
[ 169.382522] [<ffffffff8142d9b8>] btrfs_start_dirty_block_groups+0x2a8/0x420
[ 169.390475] [<ffffffff81429740>] ? btrfs_run_delayed_refs+0x210/0x300
[ 169.397880] [<ffffffff81440586>] btrfs_commit_transaction+0x146/0xa30
[ 169.405308] [<ffffffff8143c63f>] transaction_kthread+0x19f/0x1f0
[ 169.412317] [<ffffffff8143c4a0>] ? btrfs_cleanup_transaction+0x4d0/0x4d0
[ 169.419997] [<ffffffff810e8695>] kthread+0xc5/0xe0
[ 169.425758] [<ffffffff810e85d0>] ? kthread_create_on_node+0x40/0x40
[ 169.433007] [<ffffffff81a3d072>] ret_from_fork+0x22/0x30
[ 169.439292] Code: 88 00 00 00 89 d8 5b 41 5c 41 5d 41 5e 5d c3 55 89 f1 48 c7 c2 5f e1 da 81 48 89 fe 48 c7 c7 88 cd d9 81 48 89 e5 e8 8a 24 cd ff <0f> 0b 48 c7 c7 40 27 14 82 e8 12 1e 0c 00 55 48 89 e5 41 54 53
[ 169.461686] RIP [<ffffffff814dfaa0>] assfail.constprop.21+0x1c/0x2a
[ 169.469015] RSP <ffffc9000476b8c8>
[ 169.473439] ---[ end trace 957cf23018b1bbcf ]---
[ 169.479025] BUG: unable to handle kernel NULL pointer dereference at 000000000000000b
[ 169.487252] IP: [<ffffffff811115d8>] __wake_up_common+0x28/0xa0
[ 169.493541] PGD 0 [ 169.495380]
[ 169.497218] Oops: 0000 [#3] SMP
[ 169.500700] Modules linked in: cp210x pl2303 usbserial nouveau video mxm_wmi ttm
[ 169.508570] CPU: 4 PID: 2149 Comm: btrfs-transacti Tainted: G D 4.9.0-debug+ #1
[ 169.517349] Hardware name: System manufacturer System Product Name/M4A77T, BIOS 2401 05/18/2011
[ 169.526636] task: ffff88021a7f0e00 task.stack: ffffc90004768000
[ 169.532899] RIP: 0010:[<ffffffff811115d8>] [<ffffffff811115d8>] __wake_up_common+0x28/0xa0
[ 169.541605] RSP: 0018:ffffc9000476be48 EFLAGS: 00010092
[ 169.547236] RAX: 0000000000000286 RBX: 0000000000000001 RCX: 0000000000000000
[ 169.554695] RDX: 000000000000000b RSI: 0000000000000003 RDI: ffffc9000476bf18
[ 169.562152] RBP: ffffc9000476be80 R08: 0000000000000000 R09: 0000000000000000
[ 169.569611] R10: 0000000000000000 R11: 0000000000000028 R12: ffffc9000476bf10
[ 169.577080] R13: ffffc9000476bf20 R14: 0000000000000001 R15: 0000000000000003
[ 169.584532] FS: 0000000000000000(0000) GS:ffff880237d00000(0000) knlGS:0000000000000000
[ 169.592949] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 169.599011] CR2: 000000000000000b CR3: 0000000002007000 CR4: 00000000000006e0
[ 169.606465] Stack:
[ 169.608803] 0000000000000000 0000000000000282 ffffc9000476bf18 ffffc9000476bf10
[ 169.616615] 0000000000000286 0000000000000001 0000000000000000 ffffc9000476be90
[ 169.624413] ffffffff811116be ffffc9000476beb8 ffffffff8111207c 0000000000000000
[ 169.632221] Call Trace:
[ 169.634992] [<ffffffff811116be>] __wake_up_locked+0xe/0x10
[ 169.640890] [<ffffffff8111207c>] complete+0x3c/0x60
[ 169.646173] [<ffffffff810c2c6d>] mm_release+0xad/0x130
[ 169.651711] [<ffffffff810ca0fa>] do_exit+0x13a/0xab0
[ 169.657076] [<ffffffff81a3e727>] rewind_stack_do_exit+0x17/0x20
[ 169.663391] Code: 00 00 00 55 48 89 e5 41 57 41 89 f7 41 56 41 55 4c 8d 6f 08 41 54 53 89 d3 48 83 ec 10 48 8b 57 08 89 4d d4 4c 89 45 c8 49 39 d5 <48> 8b 32 74 4a 48 8d 42 e8 4c 8d 76 e8 44 8b 20 48 8b 4d c8 44
[ 169.684082] RIP [<ffffffff811115d8>] __wake_up_common+0x28/0xa0
[ 169.690445] RSP <ffffc9000476be48>
[ 169.694256] CR2: 000000000000000b
[ 169.697902] ---[ end trace 957cf23018b1bbd0 ]---
[ 169.702832] Fixing recursive fault but reboot is needed!
4.9 final, with patches that can't possibly affect anything (one for
balance, one for extent_same, one for defrag).
Works fine on 4.8.15.
-progs 4.7.3, current Debian package.
--
u-boot problems can be solved with the help of your old SCSI manuals, the
parts that deal with goat termination. You need a black-handled knife, and
an appropriate set of candles (number and color matters). Or was it a
silver-handled knife? Crap, need to look that up.
next reply other threads:[~2016-12-16 9:18 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-16 9:18 Adam Borowski [this message]
2016-12-16 15:44 ` corrupt leaf on just-created filesystem Jeff Mahoney
2016-12-16 18:53 ` Liu Bo
2016-12-16 21:37 ` Adam Borowski
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